Description : Clean : The transfer disc can be washed as whole , which makes cleaning easier . Easy Rotation : High hardness stainless steel beads under rotating disc . High Quality : Made of high quality EVA ABS material , durable and sturdy . Function : Reduce the waist strength of the nursing staff and improve safe of the patient during transfer . Application : For users with weak legs and difficulty moving in a wheelchair . Specification : Material : EVA ABS Steel Beads Load Bearing : 150kg Feature : Double sided non slip EVA , Overall washable Size Chart : Dia : 40cm / 15 . 75inch Thickness : 2 . 5cm / 0 . 98inch Package Includes : 1x Rotating Transfer Disc Note : 1 . Please allow slightly error due to manual measurement . 2 . Due to disserent between different monitors , the picture may not reflect the actual color the item . 3 . wonderful online shopping !